tolong bantuannya yah kk, buat besok nih !!!

A. F(g(x) = 3 (2x+1)² -1
= 3 (4x²+4x+1) -1
= 12x²+12x+3-1
= 12x²+12x+2

B. G(f(x) = 2 (3x²-1) +1
= 6x²-2+1
= 6x²-1

C. F(g(2) = 12(2)² + 12 (2) + 2
= 12*4 + 24 + 2
= 48 +26
= 74

D. g(f(0) = 6(0)² -1
= 0-1
= -1